|
|
-
recursive delete in multi
Ted Yu 2013-03-13, 22:54
Hi,
Currently multi() only supports single delete Op:
public void testNestedCreate() throws Exception {
multi(zk, Arrays.asList(
/* Create */
Op.create("/multi", new byte[0], Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT),
Op.create("/multi/a", new byte[0], Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT),
Op.create("/multi/a/1", new byte[0], Ids.OPEN_ACL_UNSAFE,
CreateMode.PERSISTENT),
/* Delete */
Op.delete("/multi/a/1", 0),
Op.delete("/multi/a", 0),
Op.delete("/multi", 0)
));
To obtain all the paths to be deleted, I need to traverse all the children
of the specified node. Is there plan to support recursive deletion in multi
so that I don't need to perform the traversal first ?
Thanks
-
Re: recursive delete in multi
Marshall McMullen 2013-03-14, 03:22
No plans to add that at this point that I know of. Certainly haven't seen
any jira for this.
On Wed, Mar 13, 2013 at 4:54 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> Hi,
> Currently multi() only supports single delete Op:
>
> public void testNestedCreate() throws Exception {
>
> multi(zk, Arrays.asList(
>
> /* Create */
>
> Op.create("/multi", new byte[0], Ids.OPEN_ACL_UNSAFE,
> CreateMode.PERSISTENT),
>
> Op.create("/multi/a", new byte[0], Ids.OPEN_ACL_UNSAFE,
> CreateMode.PERSISTENT),
>
> Op.create("/multi/a/1", new byte[0], Ids.OPEN_ACL_UNSAFE,
> CreateMode.PERSISTENT),
>
> /* Delete */
>
> Op.delete("/multi/a/1", 0),
>
> Op.delete("/multi/a", 0),
>
> Op.delete("/multi", 0)
>
> ));
>
> To obtain all the paths to be deleted, I need to traverse all the children
> of the specified node. Is there plan to support recursive deletion in multi
> so that I don't need to perform the traversal first ?
>
>
> Thanks
>
-
Re: recursive delete in multi
Ted Yu 2013-03-14, 03:25
Here is the background for my request.
In HBase, we use the following code to do clean up:
ZKUtil.deleteChildrenRecursively(watcher, acquiredZnode);
ZKUtil.deleteChildrenRecursively(watcher, reachedZnode);
ZKUtil.deleteChildrenRecursively(watcher, abortZnode);
It would be nice if recursive deletion is supported so that we don't need
to traverse all the children first.
Thanks
On Wed, Mar 13, 2013 at 8:22 PM, Marshall McMullen <
[EMAIL PROTECTED]> wrote:
> No plans to add that at this point that I know of. Certainly haven't seen
> any jira for this.
>
>
> On Wed, Mar 13, 2013 at 4:54 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
>
> > Hi,
> > Currently multi() only supports single delete Op:
> >
> > public void testNestedCreate() throws Exception {
> >
> > multi(zk, Arrays.asList(
> >
> > /* Create */
> >
> > Op.create("/multi", new byte[0], Ids.OPEN_ACL_UNSAFE,
> > CreateMode.PERSISTENT),
> >
> > Op.create("/multi/a", new byte[0], Ids.OPEN_ACL_UNSAFE,
> > CreateMode.PERSISTENT),
> >
> > Op.create("/multi/a/1", new byte[0], Ids.OPEN_ACL_UNSAFE,
> > CreateMode.PERSISTENT),
> >
> > /* Delete */
> >
> > Op.delete("/multi/a/1", 0),
> >
> > Op.delete("/multi/a", 0),
> >
> > Op.delete("/multi", 0)
> >
> > ));
> >
> > To obtain all the paths to be deleted, I need to traverse all the
> children
> > of the specified node. Is there plan to support recursive deletion in
> multi
> > so that I don't need to perform the traversal first ?
> >
> >
> > Thanks
> >
>
-
Re: recursive delete in multi
Marshall McMullen 2013-03-14, 04:01
I agree, sounds like a good enhancement. And far safer and less
race-condition prone too. Feel free to open a Jira on this as we don't have
one on it yet.
On Wed, Mar 13, 2013 at 9:25 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> Here is the background for my request.
> In HBase, we use the following code to do clean up:
>
> ZKUtil.deleteChildrenRecursively(watcher, acquiredZnode);
>
> ZKUtil.deleteChildrenRecursively(watcher, reachedZnode);
>
> ZKUtil.deleteChildrenRecursively(watcher, abortZnode);
> It would be nice if recursive deletion is supported so that we don't need
> to traverse all the children first.
>
> Thanks
>
> On Wed, Mar 13, 2013 at 8:22 PM, Marshall McMullen <
> [EMAIL PROTECTED]> wrote:
>
> > No plans to add that at this point that I know of. Certainly haven't seen
> > any jira for this.
> >
> >
> > On Wed, Mar 13, 2013 at 4:54 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> >
> > > Hi,
> > > Currently multi() only supports single delete Op:
> > >
> > > public void testNestedCreate() throws Exception {
> > >
> > > multi(zk, Arrays.asList(
> > >
> > > /* Create */
> > >
> > > Op.create("/multi", new byte[0], Ids.OPEN_ACL_UNSAFE,
> > > CreateMode.PERSISTENT),
> > >
> > > Op.create("/multi/a", new byte[0], Ids.OPEN_ACL_UNSAFE,
> > > CreateMode.PERSISTENT),
> > >
> > > Op.create("/multi/a/1", new byte[0],
> Ids.OPEN_ACL_UNSAFE,
> > > CreateMode.PERSISTENT),
> > >
> > > /* Delete */
> > >
> > > Op.delete("/multi/a/1", 0),
> > >
> > > Op.delete("/multi/a", 0),
> > >
> > > Op.delete("/multi", 0)
> > >
> > > ));
> > >
> > > To obtain all the paths to be deleted, I need to traverse all the
> > children
> > > of the specified node. Is there plan to support recursive deletion in
> > multi
> > > so that I don't need to perform the traversal first ?
> > >
> > >
> > > Thanks
> > >
> >
>
-
Re: recursive delete in multi
Ted Yu 2013-03-14, 04:10
I logged ZOOKEEPER-1665
Cheers
On Wed, Mar 13, 2013 at 9:01 PM, Marshall McMullen <
[EMAIL PROTECTED]> wrote:
> I agree, sounds like a good enhancement. And far safer and less
> race-condition prone too. Feel free to open a Jira on this as we don't have
> one on it yet.
>
>
> On Wed, Mar 13, 2013 at 9:25 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
>
> > Here is the background for my request.
> > In HBase, we use the following code to do clean up:
> >
> > ZKUtil.deleteChildrenRecursively(watcher, acquiredZnode);
> >
> > ZKUtil.deleteChildrenRecursively(watcher, reachedZnode);
> >
> > ZKUtil.deleteChildrenRecursively(watcher, abortZnode);
> > It would be nice if recursive deletion is supported so that we don't need
> > to traverse all the children first.
> >
> > Thanks
> >
> > On Wed, Mar 13, 2013 at 8:22 PM, Marshall McMullen <
> > [EMAIL PROTECTED]> wrote:
> >
> > > No plans to add that at this point that I know of. Certainly haven't
> seen
> > > any jira for this.
> > >
> > >
> > > On Wed, Mar 13, 2013 at 4:54 PM, Ted Yu <[EMAIL PROTECTED]> wrote:
> > >
> > > > Hi,
> > > > Currently multi() only supports single delete Op:
> > > >
> > > > public void testNestedCreate() throws Exception {
> > > >
> > > > multi(zk, Arrays.asList(
> > > >
> > > > /* Create */
> > > >
> > > > Op.create("/multi", new byte[0], Ids.OPEN_ACL_UNSAFE,
> > > > CreateMode.PERSISTENT),
> > > >
> > > > Op.create("/multi/a", new byte[0],
> Ids.OPEN_ACL_UNSAFE,
> > > > CreateMode.PERSISTENT),
> > > >
> > > > Op.create("/multi/a/1", new byte[0],
> > Ids.OPEN_ACL_UNSAFE,
> > > > CreateMode.PERSISTENT),
> > > >
> > > > /* Delete */
> > > >
> > > > Op.delete("/multi/a/1", 0),
> > > >
> > > > Op.delete("/multi/a", 0),
> > > >
> > > > Op.delete("/multi", 0)
> > > >
> > > > ));
> > > >
> > > > To obtain all the paths to be deleted, I need to traverse all the
> > > children
> > > > of the specified node. Is there plan to support recursive deletion in
> > > multi
> > > > so that I don't need to perform the traversal first ?
> > > >
> > > >
> > > > Thanks
> > > >
> > >
> >
>
|
|
